EP 0020298 B1 19830622 - BENZOXAZOLYL STILBENES, PROCESS FOR THEIR PREPARATION AND THEIR USE AS OPTICAL BRIGHTENERS FOR ORGANIC MATERIALS
Title (en)
BENZOXAZOLYL STILBENES, PROCESS FOR THEIR PREPARATION AND THEIR USE AS OPTICAL BRIGHTENERS FOR ORGANIC MATERIALS
Publication
Application
Priority
CH 459679 A 19790517
Abstract (en)
[origin: ES8104842A1] Benzoxazolyl-stilbenes of the formula < IMAGE > in which R is a 6-membered heterocyclic radical which has 2 nitrogen atoms in the o-position, m-position or p-position relative to one another, and one of Z and Zo is hydrogen and the other is hydrogen or chlorine, and the benzene nucleus A can carry conventional non-chromophoric substituents, processes for their preparation and their use for the fluorescent brightening of organic material.
IPC 1-7
IPC 8 full level
C07D 237/14 (2006.01); C07D 239/26 (2006.01); C07D 239/30 (2006.01); C07D 239/34 (2006.01); C07D 239/36 (2006.01); C07D 239/42 (2006.01); C07D 239/46 (2006.01); C07D 239/48 (2006.01); C07D 239/52 (2006.01); C07D 239/54 (2006.01); C07D 239/58 (2006.01); C07D 263/57 (2006.01); C07F 9/6509 (2006.01); C07F 9/6512 (2006.01); C09B 57/00 (2006.01); C07D 263/56 (2006.01)
CPC (source: EP US)
C07D 237/14 (2013.01 - EP US); C07D 239/26 (2013.01 - EP US); C07D 239/34 (2013.01 - EP US); C07D 239/36 (2013.01 - EP US); C07D 239/42 (2013.01 - EP US); C07D 239/47 (2013.01 - EP US); C07D 239/48 (2013.01 - EP US); C07D 239/52 (2013.01 - EP US); C07D 239/54 (2013.01 - EP US); C07D 239/58 (2013.01 - EP US); C07D 263/57 (2013.01 - EP US); C07F 9/650905 (2013.01 - EP US); C07F 9/6512 (2013.01 - EP US)
Citation (examination)
FR 2343741 A1 19771007 - HOECHST AG [DE]
Designated contracting state (EPC)
BE CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0020298 A1 19801210; EP 0020298 B1 19830622; BR 8003062 A 19801223; DE 3063855 D1 19830728; ES 491554 A0 19810516; ES 8104842 A1 19810516; JP S55152748 A 19801128; US 4297234 A 19811027
DOCDB simple family (application)
EP 80810161 A 19800512; BR 8003062 A 19800516; DE 3063855 T 19800512; ES 491554 A 19800516; JP 6417280 A 19800516; US 14696080 A 19800505